NF EN ISO 1973
Textile fibres. Determination of linear density. Gravimetric method and vibroscope method.
La présente norme décrit une méthode d'essai permettant de déterminer la masse linéique des fibres textiles (ou masse par unité de longueur) quelles que soient leur nature et leur longueur. La masse linéique des fibres est une des caractéristiques essentielles de ces fibres, notamment pour leur choix en fonction d'une utilisation donnée.
La présente norme spécifie une méthode de détermination de la masse par unité de longueur des fibres textiles (masse linéique), en mesurant sa fréquence de résonance au moyen d'un vibroscope. Elle est particulièrement interéssante dans le cas des fibres synthétiques, tout en étant applicable avec moins de précision aux fibres de coton et de laine.
This document specifies a gravimetric method and a vibroscope method for the determination of the linear density of textile fibres applicable respectively to: a) bundles of fibres; b) individual fibres. Useful data can be obtained on man-made fibres and, with less precision, on natural fibres. This document only applies to fibres which can be kept straight and, in the case of bundles, parallel, during test preparation. It is properly applicable when the fibres are readily freed of crimp. The methods in this document are not applicable to tapered fibres. The vibroscope method is not always applicable to hollow and flat (ribbon-like) fibres.
The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.
The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.
With Requirements, quickly access the main part of the normative text!

- With a single click, add a new language, the Requirements or Redline+ service and add one or more additional users.
- Whether you are in the process of acquiring a standard or it is already available in your personal space, the UPSELL service is available at every stage to help you understand it and implement it within your organization.
COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.
Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!
Request your free, no-obligation live demo
I discover COBAZ